mirror of
https://github.com/MoleskiCoder/EightBit.git
synced 2024-06-28 17:29:43 +00:00
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
#include "stdafx.h"
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#include "Board.h"
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#include <iostream>
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#include <sstream>
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#include <iomanip>
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#include <assert.h>
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Board::Board(const Configuration& configuration)
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: m_configuration(configuration),
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m_cpu(EightBit::mc6809(*this)),
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m_disassembler(m_cpu) {}
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void Board::initialise() {
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const auto directory = m_configuration.getRomDirectory() + "\\";
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m_extendedBasic.load(directory + "extbas11.rom");
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m_colorBasic.load(directory + "bas12.rom");
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m_diskBasic.load(directory + "disk11.rom");
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if (m_configuration.isDebugMode()) {
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CPU().ExecutingInstruction.connect(std::bind(&Board::Cpu_ExecutingInstruction_Debug, this, std::placeholders::_1));
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}
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CPU().powerOn();
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CPU().reset();
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}
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void Board::Cpu_ExecutingInstruction_Debug(EightBit::mc6809& cpu) {
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auto address = cpu.PC().word;
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auto cell = peek(address);
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std::cout << std::hex;
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std::cout << "PC=" << EightBit::Disassembly::dump_WordValue(address) << ":";
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std::cout << "CC=" << EightBit::Disassembly::dump_Flags(CPU().CC()) << ",";
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std::cout << "D=" << EightBit::Disassembly::dump_WordValue(CPU().D().word) << ",";
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std::cout << "X=" << EightBit::Disassembly::dump_WordValue(CPU().X().word) << ",";
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std::cout << "Y=" << EightBit::Disassembly::dump_WordValue(CPU().Y().word) << ",";
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std::cout << "U=" << EightBit::Disassembly::dump_WordValue(CPU().U().word) << ",";
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std::cout << "S=" << EightBit::Disassembly::dump_WordValue(CPU().S().word) << ",";
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std::cout << "DP=" << EightBit::Disassembly::dump_ByteValue(CPU().DP()) << "\t";
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std::cout << m_disassembler.disassemble(address);
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std::cout << "\n";
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}
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uint8_t& Board::reference(uint16_t address) {
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// 0x0000 - 0x7fff
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if (address < 0x8000)
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return m_ram.reference(address);
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// 0x8000 - 0x9fff
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if (address < 0xa000)
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return DATA() = m_extendedBasic.peek(address - 0x8000);
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// 0xa000 - 0xbfff
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if (address < 0xc000)
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return DATA() = m_colorBasic.peek(address - 0xa000);
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// 0xc000 - 0xdfff
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if (address < 0xe000)
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return DATA() = m_diskBasic.peek(address - 0xc000);
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// 0xe000 - 0xfeff
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if (address < 0xff00)
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return DATA() = 0xff;
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// 0xe000 - 0xfeff
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if (address < 0xfff0)
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return m_io.reference(address - 0xff00);
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// 0xfff0 - 0xffff
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const auto offset = address - 0xfff0;
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return DATA() = m_colorBasic.peek(0x1ff0 + offset);
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}
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